Got our unit last August. Through the fall, we used the cheapie sewer hose that the dealer tossed in for free. I would like to upgrade this spring (figure the old one got brittle over winter & I will recreate the scene from RV first trip out).

From reading this forum, I believe the sewer hose is 4 inches wide & it won't fit through the hole which is only 3 inches in the storage trunk. Our unit was made before FR made the hole bigger.

Is the only option to cut a bigger hole? Is it as simple as unscrewing (not even sure if it's screwed in) the old white plate, using a saw to cut a bigger hole, & screwing in a bigger white plate? And, lastly, where can I buy a bigger white plate (I'm not hitting the right string of words to find one on Amazon)?

I have the Rhino Flex and love it because the ends swivel, making it a lot easier to hook it up straight. But, as you say, it won't fit in the bumper because of those swivel fittings, which don't easily come off. I use a big plastic container with lid to segregate my sewer hose, gray rinsing hose and all other sewer equipment. It doesn't weigh much, and I can just toss it in the bed of my truck. That may not work for you, but I'm sure some other ideas will be presented that will be helpful.

__________________2018 Coachmen Apex 249 RBS
2010 Silverado LT 5.3 V8

The world is a great book, of which those who never stir from home
read only a page. - St. Augustine

x2
mjones has a good idea. While your at walmart buying the hose walk over to the plastic storage box area and find one that will hold the hose. While your there buy a good pair of long rubber gloves. I place mine inside a zip lock bag and the hose and gloves go into the storage bin. Another good purchase is one of the clear 90' sewer fittings that you can run water backwards to flush if needed. Not that you want to watch what is going down the drain but it helps to see if the water running through your black tank is clean=thus should be empty.

Rhino Flex hose I have found to be in my opinion is the best> I have been at camping for around twenty five years. I have used everything that has been avaiable. There are numerous ways to carry the Rhino hose. True it will not fit in the bumper for storage because of the size. Some use plastic boxes from WalMart or other places.

I use a 4" PVC, thin wall irrigation pipe from Lowe's. I use a fitting glued to each end with a 4" screw in plug. I used Stainless clamps to attach the pipe under my RV. You have to remove part of the locking ears on the RHINO hose with a hacksaw for it to fit into the PVC pipe.

Thanks for the info. Sorry, my question wasn't clear. On the Sunseeker, the dump valves are in a storage compartment. At the bottom of the storage compartment, there is a hole with a screw off cover. The question is about the sewer hose being 4 inches (I believe), the hole at the bottom of the storage compartment being 3 inches (I believe), & what / how to modify to get the sewer hose through the hole.

Thanks for the info. Sorry, my question wasn't clear. On the Sunseeker, the dump valves are in a storage compartment. At the bottom of the storage compartment, there is a hole with a screw off cover. The question is about the sewer hose being 4 inches (I believe), the hole at the bottom of the storage compartment being 3 inches (I believe), & what / how to modify to get the sewer hose through the hole.

I have done this mod. It is as easy as you described. What you are looking for is a "deck plate". It is available from boating supply places or Amazon. If you search that term you will find it.

Since the Rhino hose has ends on it, I just coil it up in the sewer compartment.